Minority births on track to outnumber white births

That is because Hispanic women on average have three children, while other women on average have two. The numbers are 2.99 children for Hispanics, 1.87 for whites, 2.13 for blacks and 2.04 for Asians in the U.S. And the number of white women of prime childbearing age is on the decline, dropping 19 percent from 1990.

For example:

-In Gwinnett County, Ga., an Atlanta suburb, the population has shifted from 16 percent minority in 1990 to 58 percent minority in 2008. The number of blacks and Hispanics nearly doubled, while the number of white young people stayed roughly the same.

-The population of Dakota County, Neb., increased from 15 percent minority in 1990 to 54 percent in 2008, due largely to an influx of Hispanics who came looking for work in meatpacking and other labor.

-In Lake County, Ind., a suburb of Chicago, the minority population grew from 43 percent in 1990 to 53 percent in 2008 as the number of white children declined, the number of blacks stayed stable and the number of Hispanics increased.

The 2008 census estimates used local records of births and deaths, tax records of people moving within the U.S., and census statistics on immigrants. The figures for "white" refer to those whites who are not of Hispanic ethnicity.